Theodore p



(No Model.)

T. P. FARMBR.

STORE SERVICE BUFFER.

No. 414,032. Patented Oct. 29, 1889.

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UNITED STATES THEODORE P. FARMER, OF BOSTON,

PATENT OFFICE.

LAMSON CASH RAILWAY COMPANY, OF SAME PLACE.

STORE-SERVICE BUFFER.

SPECIFICATION forming part of Letters Patent No. 414,032, dated October 29, 1889.

Application filed February 19, 1885. Serial No. 156,428. (No model.)

To all whom it may concern.-

Be it known that I, THEODORE P. FARMER, of Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Store-Service Buffers, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention has for its object to prevent the sudden jars and strains which result from the abrupt stoppage of the movement of the cars in store-service apparatus; and my i11- vention consists in constructing the arresting device, as fully set forth hereinafter, so as to stop the car quickly, but without too sudden an action.

In the drawings, Figure 1 is a side elevation of an arresting device embodying my i11- vention. Fig. 2 is an end view. Fig. 3 is a plan. Fig. 4 is an elevation showing a wire, arresting device, and car.

A is a stationary portion of the buffer or arresting device, provided with any suitable appliances for securing it to the wire C.

B is the movable portion of the buffer, perforated to receive the wire on which it slides. D is an interposed spring of any suitable form and dimensions, and a is an armextension or rod projecting from one portion of the buffer to or through the other, so as to slide through the latter, and provided with a head, nut, bearing, or lip l), which limits the forward movement of the part B. The spring is preferably coiled upon the rod a, but it may be coiled around the wire.

In a socket in the part B is fitted a bearing E, of rubber or other elastic material, having a curved face 1 adapted to the curved end of a catch E upon the car, and the part B is provided with a shoulder 8, adapted to engage with the end of the catch when the car moves forward or rebounds after the catch F has struck the bearing E of the buffer. The shoulder 8 may be upon a stationary portion of the movable part B. I prefer, however, to form it upon a dog G, pivoted at i to the portion B,with a spring '5', tending to keep it in the position shown in Fig. 1, so that the contact of the catch F with a bevel-face w of the dog will cause the latter to rise until the end of the catch passes the shoulder s, when the dog will fall into a position to present the shoulder in the way of the catch F when the carrier re bounds. The bearing E not only prevents noise when the catch strikes the bufier, but, further, prevents wear and co-operates with the spring D to reduce the shock 0ccasioned by the sudden stoppage of the car rier, and the curved face y co-operates with the curved spring end of the catch F to afford an extended bearing, which also re duces the shock, noise, and wear. In some instances the bearing E alone may be used to absorb the shock, the forward end B in such case being secured by set-screws e, or otherwise, in a stationary position on the wire, and the spring D and portion A being dispensed with. The catch F is usually provided with a handle f, pressure on which first disengages the catch from the shoulder s, and then propels the car on the wire.

YVithout limiting myself to the precise con struction shown, I claim- 1. The combination, in a buffer for storeservice apparatus, of the stationary section A, movable section B, provided with an elastic bearing E, and a pivoted dog having a shoulder s and an interposed spring, substantially as specified.

2. The combination,in a buifer for storeservice apparatus, of a section A and means for securing it to the wire, the movable sec tion B, provided with an elastic bearing E, and a pivoted spring-seated dog G, a spring interposed between said sections, and an arm or rod to, provided with a head or bearing 17, substantially as specified.

3. The combination, with the car having a 0 movable catch provided with ahandle, of the stop carrying a pivoted dog having an in clined face an and an elastic bearing E, sub stantially as described.

4. The combination, in a butter for storeservice apparatus, of the stationary section,

the movable section provided with anelasiic bearing, a pivoteddog having alock ing shonb der, and a spring interposed between the sections, and a carrier provided with a catch,

5 and a handle secured to the latter, substantially as described.

In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

THEODORE P. FARMER.

Witnesses:

AMBROSE EASTMAN, JAMEs R. PoWERs. 

